Ah, OK. I’m currently trying to use the default “thumbnail” size available in ACF. However, I’ve tried all the standard size options AFC has and none of them work for me.
I will try the regenerate thumbnail plugin buy if this worked, presumably I’d have to do this every time an image was added to the site which is not ideal for a client.
Thanks for the help,
OK, figured it out. I was using images that were already uploaded into the media gallery to test with so they didn’t have thumbnails create as you quite rightly said. If I upload fresh images it works correctly (uses thumbnail previews)
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